How to restore Firefox profile from "Old Firefox Data" (after using "Refresh Firefox&

The state of the Firefox userbase, including user totals, usage hours, and version adoption. Use our public data to improve your Firefox support!

Firefox backs up personal data and settings stored in a profile folder, which you can copy for safekeeping. To back up your Firefox profile, first close the browser, locate your profile folder, and copy it to a safe location.

註： 重新整理 Firefox 的功能 會將您原有的設定檔資料夾及其內容備份至桌面的 Old Firefox Data 資料夾。 如果您最近曾重新整理過 Firefox 並且尚未刪除此資料夾，那麼您已經有完整的備份檔了。

Firefox stores your personal data, such as bookmarks, passwords, and extensions, in a profile folder on your computer, in a location separate from the Firefox program. This article explains how to back up your profile, restore it, or move your profile to

如果您需要创建一个新的 Firefox 用户配置文件，本文可以告诉您如何从旧的Firefox数据中恢复书签、浏览历史和密码等信息。

To make a copy of all your saved passwords, bookmarks, and add-ons, back up your Mozilla Firefox profile to a safe location either on your internal or your external storage. Later, you can restore this backup to bring all your items back into the browser.

Luckily, the Firefox web browser now offers an easy way to back up your data to your computer without installing or using third-party tools. A built-in backup and restore feature has been added to recent versions of Firefox.